fragment	start	end
misc invalid
t=
t=.
t=.0
t=0s
t=,0s
t=0s,0s
t=00:00:00s
t=s
t=,
t=1e-1
t=00:00:01.1e-1
seconds
t=0	0
t=,0		0
t=0,0	0	0
t=-0
t= 0
t=1	1
t=,1		1
t=10	10
t=10.	10
t=10.0	10
t=0.03	0.03
t=1234.5678	1234.5678
t=20,30	20	30
HH:MM:SS
t=0:0:0
t=0:000:000
t=0:00:00	0
t=0:00:01	1
t=0:00:59	59
t=0:00:60
t=0:01:00	60
t=0:01:01	61
t=0:01:59	119
t=0:01:60
t=0:59:00	3540
t=0:59:59	3599
t=0:60:00
t=1:00:00	3600
t=60:00:00	216000
HH:MM:SS.ms
t=00:00.
t=0:00:00.
t=0:00:10e-1
t=0:00:00.0	0
t=00:00:00.00	0
t=000:00:00.000	0
t=00:00:00.001	0.001
t=00:00:00.5	0.5
t=00:00:00.999	0.999
t=0:00:59.999	59.999
t=0:00:60.000
t=0:59:59.999	3599.999
t=0:60:00.000
t=1:00:00.000	3600
t=1000:00:00.001	3600000.001
various mixed
t=1,0:02:54	1	174
t=0:30:12.43,42	1812.43	42
one invalid, one valid
t=b0rk,0
t=0,b0rk
the last fragment takes effect
t=1&t=3	3
t=1,2&t=3	3
preceding invalid time fragment is ignored
t=foo&t=1,2	1	2
trailing invalid time fragment is ignored
t=1,2&t=foo	1	2
rubbish before & is ignored
foo&t=1,2	1	2
foo=bar&t=1,2	1	2
rubbish after & is ignored
t=1,2&foo	1	2
t=1,2&foo=bar	1	2
sprinkling & is OK
&t=1,2	1	2
&&t=1,2	1	2
t=1,2&	1	2
t=1,2&&	1	2
&t=1,2&	1	2
correct percent-encoding
%74=10,20	10	20
t=%31%30	10
t=10%2C20	10	20
t=%6Ept:10	10
t=npt%3a10	10
incorrect percent-encoding
t%3d10
t=10%26